refactor: 문서 개선 중
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donghyeon-ka
+27
-27
@@ -1,8 +1,8 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<svg xmlns="http://www.w3.org/2000/svg" width="895" height="580" viewBox="0 0 895 580" role="img" aria-labelledby="diagram-title diagram-description">
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<svg xmlns="http://www.w3.org/2000/svg" width="895" height="642" viewBox="0 0 895 642" role="img" aria-labelledby="diagram-title diagram-description">
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<title id="diagram-title">가상 머신 둘과 호스트 프로세스가 하나의 NVMe 로 모인다</title>
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<desc id="diagram-description">위쪽에 네 출발점이 나란히 있다. VM1 QEMU 는 WRITE X 와 READ Y, WRITE Z 를 내고 VM2 QEMU 는 READ A 와 WRITE B 를 내며, 그 옆에 호스트의 Nginx 와 다른 프로세스가 있다. 네 갈래가 모두 가운데의 Host Block Layer 하나로 모인다. Host Block Layer 는 그 I/O 가 가상 머신 안에서 시작했는지 호스트 프로세스에서 시작했는지를 본질적으로 구분해 처리하는 계층이 아니라 들어온 것을 모두 Host block request 로 다루고, 그 요청들을 queue 에서 관리해 맨 아래 NVMe 로 dispatch 한다. 여기서 생기는 경쟁이 Storage Contention 이고 CPU 실행 시간을 두고 벌어지는 CPU Contention 과는 다투는 자원이 다르다는 것은 본문 문단이 맡는다.</desc>
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<metadata>{"techviz":{"spec_version":"1.1","id":"vms-sharing-one-nvme","profile":"component-flow"},"source_context":{"document":"docs/virtualization/final/document.md","document_sha256":"181e2b3cc8a45bae81e7e8193d026937c4d586ae4495d3b2c323eb7e6abcfadd","anchor":{"kind":"heading","value":"159. 여러 VM이 하나의 NVMe를 공유하면","line":7026}},"evidence_policy":"Each factual element cites source lines or is marked assumption.","diagram_only":true}</metadata>
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<metadata>{"techviz":{"spec_version":"1.1","id":"vms-sharing-one-nvme","profile":"component-flow"},"source_context":{"document":"docs/virtualization/final/document.md","document_sha256":"8c4ecc64c8cea9a4450ed7131fdd9cb2048dc092b66cd969f6346ed77887c210","anchor":{"kind":"heading","value":"159. 여러 VM이 하나의 NVMe를 공유하면","line":7039}},"evidence_policy":"Each factual element cites source lines or is marked assumption.","diagram_only":true}</metadata>
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<defs>
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<marker id="arrow" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
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<path d="M 0 0 L 10 5 L 0 10 z" />
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@@ -49,16 +49,16 @@
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.timeline-detail { font-size: 11px; fill: #4b5563; text-anchor: middle; }
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</style>
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<polyline class="edge kind-data style-solid emphasis-normal" points="565.0,144.5 565.0,202.8 469.0,202.8 469.0,261.0" data-evidence="7031-7033" />
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<rect class="edge-label-bg" x="448.2" y="383.0" width="71.6" height="22" rx="3" />
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<text class="edge-label" x="484.0" y="398.0">dispatch</text>
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<polyline class="edge kind-data style-solid emphasis-normal" points="220.0,112.5 300.0,112.5 300.0,301.5 380.0,301.5" data-evidence="7042-7044" />
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<polyline class="edge kind-data style-solid emphasis-normal" points="220.0,281.0 300.0,281.0 300.0,319.5 380.0,319.5" data-evidence="7044-7044" />
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<text class="edge-label" x="620.0" y="301.5">dispatch</text>
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<g id="node-vm1-qemu">
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<rect class="node-shape kind-service emphasis-normal role-source" data-evidence="7029-7029,7041-7044" x="70.0" y="60.0" width="150.0" height="105.0" rx="7" />
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<text class="node-label" x="145.0" y="87.0">VM1 QEMU</text>
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<line class="node-detail-divider" x1="84.0" y1="108.0" x2="206.0" y2="108.0" />
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<text class="node-detail" x="86.0" y="125.0">WRITE X</text>
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@@ -66,29 +66,29 @@
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<text class="node-detail" x="86.0" y="157.0">WRITE Z</text>
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</g>
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<g id="node-vm2-qemu">
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<rect class="node-shape kind-service emphasis-normal role-source" data-evidence="7031-7031,7046-7048" x="280.0" y="68.5" width="150.0" height="88.0" rx="7" />
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<text class="node-label" x="355.0" y="95.5">VM2 QEMU</text>
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<line class="node-detail-divider" x1="294.0" y1="116.5" x2="416.0" y2="116.5" />
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<text class="node-detail" x="296.0" y="133.5">READ A</text>
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<text class="node-detail" x="296.0" y="149.5">WRITE B</text>
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<rect class="node-shape kind-service emphasis-normal role-source" data-evidence="7044-7044,7059-7061" x="70.0" y="237.0" width="150.0" height="88.0" rx="7" />
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<text class="node-label" x="145.0" y="264.0">VM2 QEMU</text>
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<line class="node-detail-divider" x1="84.0" y1="285.0" x2="206.0" y2="285.0" />
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<text class="node-detail" x="86.0" y="302.0">READ A</text>
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<text class="node-detail" x="86.0" y="318.0">WRITE B</text>
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</g>
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<g id="node-nginx">
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<rect class="node-shape kind-service emphasis-normal role-source" data-evidence="7033-7033" x="490.0" y="80.5" width="150.0" height="64.0" rx="7" />
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<text class="node-label" x="565.0" y="110.5">Nginx</text>
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<text class="node-label" x="145.0" y="427.0">Nginx</text>
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</g>
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<g id="node-host-other">
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<text class="node-label" x="775.0" y="110.5">Host 기타</text>
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<text class="node-label" x="145.0" y="563.0">Host 기타</text>
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</g>
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<g id="node-host-block-layer">
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<text class="node-label" x="460.0" y="288.0">Host Block Layer</text>
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<line class="node-detail-divider" x1="394.0" y1="309.0" x2="526.0" y2="309.0" />
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<text class="node-detail" x="396.0" y="326.0">Host block request</text>
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<text class="node-detail" x="396.0" y="342.0">blk-mq</text>
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<text class="node-label" x="460.0" y="311.5">Host Block Layer</text>
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<text class="node-detail" x="396.0" y="349.5">Host block request</text>
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<text class="node-detail" x="396.0" y="365.5">blk-mq</text>
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</g>
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<g id="node-nvme">
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<text class="node-label" x="460.0" y="488.0">NVMe</text>
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<text class="node-label" x="775.0" y="326.5">NVMe</text>
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</g>
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</svg>
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Before Width: | Height: | Size: 8.0 KiB After Width: | Height: | Size: 8.0 KiB |
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